Could you say anything but “Thank you” to that adorable smile and be grateful that you get to see it and help make it happen? Well, you might say something after she applies that arousal cream but that won’t get you any closer to freedom, will it, so best not.
"Happy birthday, my dear! Look what I got you: A new chastity cage with a neat new feature: It has many little openings on the inner side. I can use a syringe to inject nearly any fluid imaginable into the cage and it will cover your penis instantly. The main idea is that we don’t have to remove or even open your cage anymore, just to clean your wee-wee. I can just inject some disinfecting gel and we’re done!
But of course this won’t be the only thing coming through your cage. From now on I will pump some arousal gel on your cock every day before you leave for work and every evening before you go to sleep. And I’m sure that I will come up with other funny possibilities soon.”